OK, let's crack this. We're given 275 and our task is to multiply it by 315. Essentially, we'll be adding 275 to itself 315 times.
Step 1: 0 + 275 = 275
Step 2: 275 + 275 = 550
Step 3: 550 + 275 = 825
Step 4: 825 + 275 = 1100
Step 5: 1100 + 275 = 1375
Step 6: 1375 + 275 = 1650
Step 7: 1650 + 275 = 1925
Step 8: 1925 + 275 = 2200
Step 9: 2200 + 275 = 2475
Step 10: 2475 + 275 = 2750
Step 11: 2750 + 275 = 3025
Step 12: 3025 + 275 = 3300
Step 13: 3300 + 275 = 3575
Step 14: 3575 + 275 = 3850
Step 15: 3850 + 275 = 4125
Step 16: 4125 + 275 = 4400
Step 17: 4400 + 275 = 4675
Step 18: 4675 + 275 = 4950
Step 19: 4950 + 275 = 5225
Step 20: 5225 + 275 = 5500
Step 21: 5500 + 275 = 5775
Step 22: 5775 + 275 = 6050
Step 23: 6050 + 275 = 6325
Step 24: 6325 + 275 = 6600
Step 25: 6600 + 275 = 6875
Step 26: 6875 + 275 = 7150
Step 27: 7150 + 275 = 7425
Step 28: 7425 + 275 = 7700
Step 29: 7700 + 275 = 7975
Step 30: 7975 + 275 = 8250
Step 31: 8250 + 275 = 8525
Step 32: 8525 + 275 = 8800
Step 33: 8800 + 275 = 9075
Step 34: 9075 + 275 = 9350
Step 35: 9350 + 275 = 9625
Step 36: 9625 + 275 = 9900
Step 37: 9900 + 275 = 10175
Step 38: 10175 + 275 = 10450
Step 39: 10450 + 275 = 10725
Step 40: 10725 + 275 = 11000
Step 41: 11000 + 275 = 11275
Step 42: 11275 + 275 = 11550
Step 43: 11550 + 275 = 11825
Step 44: 11825 + 275 = 12100
Step 45: 12100 + 275 = 12375
Step 46: 12375 + 275 = 12650
Step 47: 12650 + 275 = 12925
Step 48: 12925 + 275 = 13200
Step 49: 13200 + 275 = 13475
Step 50: 13475 + 275 = 13750
Step 51: 13750 + 275 = 14025
Step 52: 14025 + 275 = 14300
Step 53: 14300 + 275 = 14575
Step 54: 14575 + 275 = 14850
Step 55: 14850 + 275 = 15125
Step 56: 15125 + 275 = 15400
Step 57: 15400 + 275 = 15675
Step 58: 15675 + 275 = 15950
Step 59: 15950 + 275 = 16225
Step 60: 16225 + 275 = 16500
Step 61: 16500 + 275 = 16775
Step 62: 16775 + 275 = 17050
Step 63: 17050 + 275 = 17325
Step 64: 17325 + 275 = 17600
Step 65: 17600 + 275 = 17875
Step 66: 17875 + 275 = 18150
Step 67: 18150 + 275 = 18425
Step 68: 18425 + 275 = 18700
Step 69: 18700 + 275 = 18975
Step 70: 18975 + 275 = 19250
Step 71: 19250 + 275 = 19525
Step 72: 19525 + 275 = 19800
Step 73: 19800 + 275 = 20075
Step 74: 20075 + 275 = 20350
Step 75: 20350 + 275 = 20625
Step 76: 20625 + 275 = 20900
Step 77: 20900 + 275 = 21175
Step 78: 21175 + 275 = 21450
Step 79: 21450 + 275 = 21725
Step 80: 21725 + 275 = 22000
Step 81: 22000 + 275 = 22275
Step 82: 22275 + 275 = 22550
Step 83: 22550 + 275 = 22825
Step 84: 22825 + 275 = 23100
Step 85: 23100 + 275 = 23375
Step 86: 23375 + 275 = 23650
Step 87: 23650 + 275 = 23925
Step 88: 23925 + 275 = 24200
Step 89: 24200 + 275 = 24475
Step 90: 24475 + 275 = 24750
Step 91: 24750 + 275 = 25025
Step 92: 25025 + 275 = 25300
Step 93: 25300 + 275 = 25575
Step 94: 25575 + 275 = 25850
Step 95: 25850 + 275 = 26125
Step 96: 26125 + 275 = 26400
Step 97: 26400 + 275 = 26675
Step 98: 26675 + 275 = 26950
Step 99: 26950 + 275 = 27225
Step 100: 27225 + 275 = 27500
Step 101: 27500 + 275 = 27775
Step 102: 27775 + 275 = 28050
Step 103: 28050 + 275 = 28325
Step 104: 28325 + 275 = 28600
Step 105: 28600 + 275 = 28875
Step 106: 28875 + 275 = 29150
Step 107: 29150 + 275 = 29425
Step 108: 29425 + 275 = 29700
Step 109: 29700 + 275 = 29975
Step 110: 29975 + 275 = 30250
Step 111: 30250 + 275 = 30525
Step 112: 30525 + 275 = 30800
Step 113: 30800 + 275 = 31075
Step 114: 31075 + 275 = 31350
Step 115: 31350 + 275 = 31625
Step 116: 31625 + 275 = 31900
Step 117: 31900 + 275 = 32175
Step 118: 32175 + 275 = 32450
Step 119: 32450 + 275 = 32725
Step 120: 32725 + 275 = 33000
Step 121: 33000 + 275 = 33275
Step 122: 33275 + 275 = 33550
Step 123: 33550 + 275 = 33825
Step 124: 33825 + 275 = 34100
Step 125: 34100 + 275 = 34375
Step 126: 34375 + 275 = 34650
Step 127: 34650 + 275 = 34925
Step 128: 34925 + 275 = 35200
Step 129: 35200 + 275 = 35475
Step 130: 35475 + 275 = 35750
Step 131: 35750 + 275 = 36025
Step 132: 36025 + 275 = 36300
Step 133: 36300 + 275 = 36575
Step 134: 36575 + 275 = 36850
Step 135: 36850 + 275 = 37125
Step 136: 37125 + 275 = 37400
Step 137: 37400 + 275 = 37675
Step 138: 37675 + 275 = 37950
Step 139: 37950 + 275 = 38225
Step 140: 38225 + 275 = 38500
Step 141: 38500 + 275 = 38775
Step 142: 38775 + 275 = 39050
Step 143: 39050 + 275 = 39325
Step 144: 39325 + 275 = 39600
Step 145: 39600 + 275 = 39875
Step 146: 39875 + 275 = 40150
Step 147: 40150 + 275 = 40425
Step 148: 40425 + 275 = 40700
Step 149: 40700 + 275 = 40975
Step 150: 40975 + 275 = 41250
Step 151: 41250 + 275 = 41525
Step 152: 41525 + 275 = 41800
Step 153: 41800 + 275 = 42075
Step 154: 42075 + 275 = 42350
Step 155: 42350 + 275 = 42625
Step 156: 42625 + 275 = 42900
Step 157: 42900 + 275 = 43175
Step 158: 43175 + 275 = 43450
Step 159: 43450 + 275 = 43725
Step 160: 43725 + 275 = 44000
Step 161: 44000 + 275 = 44275
Step 162: 44275 + 275 = 44550
Step 163: 44550 + 275 = 44825
Step 164: 44825 + 275 = 45100
Step 165: 45100 + 275 = 45375
Step 166: 45375 + 275 = 45650
Step 167: 45650 + 275 = 45925
Step 168: 45925 + 275 = 46200
Step 169: 46200 + 275 = 46475
Step 170: 46475 + 275 = 46750
Step 171: 46750 + 275 = 47025
Step 172: 47025 + 275 = 47300
Step 173: 47300 + 275 = 47575
Step 174: 47575 + 275 = 47850
Step 175: 47850 + 275 = 48125
Step 176: 48125 + 275 = 48400
Step 177: 48400 + 275 = 48675
Step 178: 48675 + 275 = 48950
Step 179: 48950 + 275 = 49225
Step 180: 49225 + 275 = 49500
Step 181: 49500 + 275 = 49775
Step 182: 49775 + 275 = 50050
Step 183: 50050 + 275 = 50325
Step 184: 50325 + 275 = 50600
Step 185: 50600 + 275 = 50875
Step 186: 50875 + 275 = 51150
Step 187: 51150 + 275 = 51425
Step 188: 51425 + 275 = 51700
Step 189: 51700 + 275 = 51975
Step 190: 51975 + 275 = 52250
Step 191: 52250 + 275 = 52525
Step 192: 52525 + 275 = 52800
Step 193: 52800 + 275 = 53075
Step 194: 53075 + 275 = 53350
Step 195: 53350 + 275 = 53625
Step 196: 53625 + 275 = 53900
Step 197: 53900 + 275 = 54175
Step 198: 54175 + 275 = 54450
Step 199: 54450 + 275 = 54725
Step 200: 54725 + 275 = 55000
Step 201: 55000 + 275 = 55275
Step 202: 55275 + 275 = 55550
Step 203: 55550 + 275 = 55825
Step 204: 55825 + 275 = 56100
Step 205: 56100 + 275 = 56375
Step 206: 56375 + 275 = 56650
Step 207: 56650 + 275 = 56925
Step 208: 56925 + 275 = 57200
Step 209: 57200 + 275 = 57475
Step 210: 57475 + 275 = 57750
Step 211: 57750 + 275 = 58025
Step 212: 58025 + 275 = 58300
Step 213: 58300 + 275 = 58575
Step 214: 58575 + 275 = 58850
Step 215: 58850 + 275 = 59125
Step 216: 59125 + 275 = 59400
Step 217: 59400 + 275 = 59675
Step 218: 59675 + 275 = 59950
Step 219: 59950 + 275 = 60225
Step 220: 60225 + 275 = 60500
Step 221: 60500 + 275 = 60775
Step 222: 60775 + 275 = 61050
Step 223: 61050 + 275 = 61325
Step 224: 61325 + 275 = 61600
Step 225: 61600 + 275 = 61875
Step 226: 61875 + 275 = 62150
Step 227: 62150 + 275 = 62425
Step 228: 62425 + 275 = 62700
Step 229: 62700 + 275 = 62975
Step 230: 62975 + 275 = 63250
Step 231: 63250 + 275 = 63525
Step 232: 63525 + 275 = 63800
Step 233: 63800 + 275 = 64075
Step 234: 64075 + 275 = 64350
Step 235: 64350 + 275 = 64625
Step 236: 64625 + 275 = 64900
Step 237: 64900 + 275 = 65175
Step 238: 65175 + 275 = 65450
Step 239: 65450 + 275 = 65725
Step 240: 65725 + 275 = 66000
Step 241: 66000 + 275 = 66275
Step 242: 66275 + 275 = 66550
Step 243: 66550 + 275 = 66825
Step 244: 66825 + 275 = 67100
Step 245: 67100 + 275 = 67375
Step 246: 67375 + 275 = 67650
Step 247: 67650 + 275 = 67925
Step 248: 67925 + 275 = 68200
Step 249: 68200 + 275 = 68475
Step 250: 68475 + 275 = 68750
Step 251: 68750 + 275 = 69025
Step 252: 69025 + 275 = 69300
Step 253: 69300 + 275 = 69575
Step 254: 69575 + 275 = 69850
Step 255: 69850 + 275 = 70125
Step 256: 70125 + 275 = 70400
Step 257: 70400 + 275 = 70675
Step 258: 70675 + 275 = 70950
Step 259: 70950 + 275 = 71225
Step 260: 71225 + 275 = 71500
Step 261: 71500 + 275 = 71775
Step 262: 71775 + 275 = 72050
Step 263: 72050 + 275 = 72325
Step 264: 72325 + 275 = 72600
Step 265: 72600 + 275 = 72875
Step 266: 72875 + 275 = 73150
Step 267: 73150 + 275 = 73425
Step 268: 73425 + 275 = 73700
Step 269: 73700 + 275 = 73975
Step 270: 73975 + 275 = 74250
Step 271: 74250 + 275 = 74525
Step 272: 74525 + 275 = 74800
Step 273: 74800 + 275 = 75075
Step 274: 75075 + 275 = 75350
Step 275: 75350 + 275 = 75625
Step 276: 75625 + 275 = 75900
Step 277: 75900 + 275 = 76175
Step 278: 76175 + 275 = 76450
Step 279: 76450 + 275 = 76725
Step 280: 76725 + 275 = 77000
Step 281: 77000 + 275 = 77275
Step 282: 77275 + 275 = 77550
Step 283: 77550 + 275 = 77825
Step 284: 77825 + 275 = 78100
Step 285: 78100 + 275 = 78375
Step 286: 78375 + 275 = 78650
Step 287: 78650 + 275 = 78925
Step 288: 78925 + 275 = 79200
Step 289: 79200 + 275 = 79475
Step 290: 79475 + 275 = 79750
Step 291: 79750 + 275 = 80025
Step 292: 80025 + 275 = 80300
Step 293: 80300 + 275 = 80575
Step 294: 80575 + 275 = 80850
Step 295: 80850 + 275 = 81125
Step 296: 81125 + 275 = 81400
Step 297: 81400 + 275 = 81675
Step 298: 81675 + 275 = 81950
Step 299: 81950 + 275 = 82225
Step 300: 82225 + 275 = 82500
Step 301: 82500 + 275 = 82775
Step 302: 82775 + 275 = 83050
Step 303: 83050 + 275 = 83325
Step 304: 83325 + 275 = 83600
Step 305: 83600 + 275 = 83875
Step 306: 83875 + 275 = 84150
Step 307: 84150 + 275 = 84425
Step 308: 84425 + 275 = 84700
Step 309: 84700 + 275 = 84975
Step 310: 84975 + 275 = 85250
Step 311: 85250 + 275 = 85525
Step 312: 85525 + 275 = 85800
Step 313: 85800 + 275 = 86075
Step 314: 86075 + 275 = 86350
Step 315: 86350 + 275 = 86625

So, 275*315 = 86625